Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2007 GMC Sierra 3500 drivetrain problems

drivetrain problem

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2007 GMC Sierra 3500 Owner Comments

problem #1

Dec 072011

Sierra 3500 4WD 8-cyl Diesel

  • miles


Transmission cooler line leak could leak out all fluid and cause transmission failure. The consumer was informed the vehicle needed transmission cooler lines, transmission fluid and conditioner at a cost of $ $822.32. The service manager agreed to cut the bill to $411.16. The consumer contacted GM customer service to make a complaint. After an investigation, the consumer was informed by GM that the dealer stated the failure was caused by the age of the vehicle and GM would not cover the cost of the part. The consumer stated the part was made of defective materials and should have been recalled. When the consumer contacted the dealer, they stated they had not made a diagnosis of the failure and the parts were sent to GM to be examined. Updated IVOQ 01/04/12

- Buda, TX, USA

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